Herobrine, a mysterious player, who is an entity that haunts Minecraft.
Herobrine was first discovered in Minecraft when a curious player saw him in the fog (tiny render distance). The player purued Herobrine, but he was... gone. The myth goes to say that Herobrine knew that he was being followed.
Herobrine started out as Steve's brother, Steven. Steven killed other players and gained their abilities, leaving Notch the only one left. He is now Herobrine, lord of: The Nether, The End, Mining, Fire, Weather, Monsters, Flight, Teleportation, Darkness, Combat, and Building. Steven got his whie eyes because Notch killed him in means of self defense. Herobrine got hit by lightning just as he died, giving him energy, burning his eyes and further contaminating him. He came back to life once Hardcore mode was added. Remember, this is only legend. I got this story from a Herobrinologist who managed to get rid of all the red tape of Herobrine's story.
Herobrine walks/runs/swims faster than the player. He can easily dissappear from the player. His most prominent ability is to stare at the player and burn him or her until they die. Herobrine has an arsenal of items, as if he is in Creative mode. It is assumed he can see in the dark with his glowing eyes.
Means of Summon Edit
By building a "Totem" of Gold, Obsidan, Moss, and Water. It will summon him, and then he will greif you in Minecraft.
But no longer works in 1.3.1 and after.
All Night Edit
If one leaves Minecraft running overnight, as you sleep he will appear and watch you as you sleep. He will further haunt you after this.
Hearding many animals into lava is said to act as a sacrifice to Herobrine. He is thought to be summoned by these gifts.